Grassy Key, Florida
Current Conditions -  °F | °C
As of 7:53 AM on Sunday 21 Sep 2014 (Local Time) from KMTH Reporting Station
Few Clouds Few Clouds  
Wind Chill: 80°   Ceiling: Unl
Heat Index: 86°   Visibility: 10mi
Dew Point: 78°   Wind: 0mph
Humidity: 94%   Direction: NA
Pressure: 29.99"   Gusts: NA
Location:  24.7161°N, 81.0717°W
Report Text: KMTH 211153Z AUTO 00000KT 10SM FEW110 27/26 A2999 RMK AO2 RAB09E42 SLP154 P0000 60000 T02670256 10272 20261 53021
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Tropical Storm Tracking
Hourly Forecast -  °F | °C
Hi 85° - Lo 80°
9 AM
M Cloudy
M Cloudy
82°
10 AM
P Cloudy
P Cloudy
83°
11 AM
M Cloudy
M Cloudy
84°
12 PM
P Cloudy
P Cloudy
84°
1 PM
M Cloudy
M Cloudy
85°
2 PM
M Cloudy
M Cloudy
85°
Weather Maps
Daily Forecast -  °F | °C
sun mon tue wed thu fri sat sun mon tue
sep
21
Iso T-Storms
Iso T-Storms
85°
80°
sep
22
Hvy T-Storms
Hvy T-Storms
84°
80°
sep
23
T-Storms
T-Storms
84°
79°
sep
24
T-Storms
T-Storms
84°
80°
sep
25
T-Storms
T-Storms
85°
80°
sep
26
AM T-Storms
AM T-Storms
86°
80°
sep
27
Sct T-Storms
Sct T-Storms
85°
80°
sep
28
Sct T-Storms
Sct T-Storms
85°
80°
sep
29
Sct T-Storms
Sct T-Storms
84°
80°
sep
30
T-Storms
T-Storms
84°
79°
Details for Sunday, September 21
A mix of clouds and sun with a slight chance of thunderstorms this afternoon. High around 85F. Winds light and variable. Chance of rain 30%.
Evening: Some clouds. Low around 80F. Winds E at 5 to 10 mph.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 74%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 59%
Cloud Coverage
Sunrise: 7:12 AM
Sunset: 7:21 PM
 
Moonrise: 4:57 AM
Moonset: 5:47 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  ESE
Direction: ESE (104°)
Speed: 4Mph(7Km, 5Kts)
Details for Monday, September 22
Thunderstorms likely. Rainfall will be locally heavy at times. High 84F. Winds E at 5 to 10 mph. Chance of rain 80%.
Evening: Scattered thunderstorms, especially overnight. Low around 80F. Winds E at 10 to 15 mph. Chance of rain 60%.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 75%
Cloud Coverage
Sunrise: 7:12 AM
Sunset: 7:20 PM
 
Moonrise: 5:47 AM
Moonset: 6:23 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  E
Direction: E (91°)
Speed: 8Mph(13Km, 9Kts)
Details for Tuesday, September 23
Showers and thunderstorms. Potential for heavy rainfall. Highs in the mid 80s and lows in the upper 70s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 78%
Cloud Coverage
Sunrise: 7:13 AM
Sunset: 7:19 PM
 
Moonrise: 6:37 AM
Moonset: 6:58 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  ESE
Direction: ESE (102°)
Speed: 12Mph(19Km, 14Kts)
Details for Wednesday, September 24
Showers and thunderstorms. Highs in the mid 80s and lows in the low 80s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 80%
Relative Humidity
Precipitation: 100%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 67%
Cloud Coverage
Sunrise: 7:13 AM
Sunset: 7:18 PM
 
Moonrise: 7:28 AM
Moonset: 7:35 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  E
Direction: E (96°)
Speed: 14Mph(22Km, 16Kts)
Details for Thursday, September 25
Thunderstorms. Highs in the mid 80s and lows in the low 80s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 50%
Cloud Coverage
Sunrise: 7:14 AM
Sunset: 7:17 PM
 
Moonrise: 8:20 AM
Moonset: 8:12 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ESE
Direction: ESE (103°)
Speed: 13Mph(21Km, 15Kts)
Details for Friday, September 26
Thunderstorms early. Highs in the mid 80s and lows in the low 80s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 30%
Cloud Coverage
Sunrise: 7:14 AM
Sunset: 7:16 PM
 
Moonrise: 9:13 AM
Moonset: 8:52 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  E
Direction: E (101°)
Speed: 11Mph(17Km, 12Kts)
Details for Saturday, September 27
Scattered thunderstorms. Highs in the mid 80s and lows in the low 80s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 76%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 47%
Cloud Coverage
Sunrise: 7:14 AM
Sunset: 7:15 PM
 
Moonrise: 10:07 AM
Moonset: 9:36 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ESE
Direction: ESE (103°)
Speed: 11Mph(18Km, 13Kts)
Details for Sunday, September 28
A few thunderstorms possible. Highs in the mid 80s and lows in the low 80s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 58%
Cloud Coverage
Sunrise: 7:15 AM
Sunset: 7:14 PM
 
Moonrise: 11:03 AM
Moonset: 10:22 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ESE
Direction: ESE (111°)
Speed: 12Mph(19Km, 13Kts)
Details for Monday, September 29
Scattered thunderstorms. Highs in the mid 80s and lows in the low 80s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 43%
Cloud Coverage
Sunrise: 7:15 AM
Sunset: 7:13 PM
 
Moonrise: 11:59 AM
Moonset: 11:13 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SE
Direction: SE (145°)
Speed: 10Mph(16Km, 11Kts)
Details for Tuesday, September 30
Thunderstorms. Highs in the mid 80s and lows in the upper 70s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 78%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 46%
Cloud Coverage
Sunrise: 7:16 AM
Sunset: 7:12 PM
 
Moonrise: 12:54 PM
Moonset: 12:01 AM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SW
Direction: SW (218°)
Speed: 10Mph(16Km, 12Kts)
Daily Forecast Chart
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